2006 - 2007 Texas Influenza Surveillance Information

Influenza Surveillance Report for MMWR Week 52

The flu activity level for the week ending December 30, 2006 is “regional”. Regional activity indicates that 2 or more but less than half of the regions are experiencing an increase in ILI and lab-confirmed (by culture) flu has been identified in those regions.

Flu reporting for week 52 was limited due to the holidays.

The DSHS laboratory isolated influenza A/H1 in only two specimens collected during week 52 from Bexar and Smith Counties. No influenza B was isolated. HSR 1 reported culture confirmed flu A and B in Lubbock County. HSR 2/3 reported culture confirmed flu A in Dallas and Tarrant Counties. Scott and White Laboratory reported culture confirmed flu B in a specimen from Brazos County. The Air Force Institute for Operational Health (AFIOH) reported no culture confirmed flu during week 52.

Reports were received from all 11 Health Service Regions (HSRs) for week 52. HSRs 1 and 7 reported an increase in flu activity from the previous week. For a map of Health Service Regions, please visit the following website:

http://www.dshs.state.tx.us/regions/state.shtm

No institutional outbreaks or school closures were reported for week 52.

Sixty-one sentinel providers reported influenza-like illness (ILI) for week 52. Of all patient visits during this week, 6.47% were due to ILI. The baseline for Texas is 3.71%. The baseline is the mean percentage of patient visits for ILI during non-influenza weeks for the previous three seasons plus two standard deviations.

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Percentage of Visits Due to Influenza-Like Illness,
Texas Sentinel Providers Surveillance Network,
2006-2007 Season

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Statewide Influenza Activity For the Week Ending December 23, 2006

(MMWR Week 52)

                

*Influenza activity level corresponds to current MMWR week only and does not reflect previous weeks’ activity.

2006 - 2007 Texas Influenza Surveillance Information --- Flu Reports

For the week ending: 10/7/06; 10/14/06; 10/21/06; 10/28/06; 11/04/06; 11/11/06; 11/18/06; 12/02/06; 12/09/06; 12/16/06; 12/23/06; 12/30/06; 1/06/07; 1/13/07; 1/20/07; 1/27/07; 2/10/07; 2/17/07; 2/24/07; 3/03/07; 3/10/07; 3/17/07; 3/24/07; 3/31/07; 4/07/07;

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